Device for grinding the bars of beating-rolls.



H. R. SIMONDS.

DEVICE FOR GRINDING THE BARS 0F BEATlNG ROLLS.

APPLICATION FILED AUG. 11, 1915.

1,163,273. Patented Dec. 7, 1915.

2 SHEETS-SHEET mw w m COLUMBIA PLANOGRAPH CO.,WASHINGTON, D. c.

H. R. SIMONDS.

DEVICE FOR GRINDING THE BARS 0F BEATING ROLLS.

APPLICATION FILED AUG- I7, IBIS.

1,163,273. Patanted Dec. 7, 1915.

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I HERBERT R. SIMONDS, OF DAYTON, OHIO.

DEVICE FOR GRINDING THE BARS OF BEATING-ROLLS.

Application filed August 17, 1915.

To all whom it may concern:

Be it known that I, HERBERT R. SIMoNDs, a citizen of the United States, residing at Dayton, county of Montgomery, State of Ohio, have invented certain new and useful Improvements in Devices for Grinding the Bars of Beating-Rolls, of which the following is a full, clear, and exact description.

My device is for the purpose of grinding the bars radiating from the rolls of beating engines used in paper mills and its object is to enable the bars to be ground when necessary, thereby keeping the rolls in proper condition without having to remove them from the tub in which they rotate. This not only effects a considerable saving of time but effects a more satisfactory result than can be otherwise obtained. Grinding the bars with the roll rotating in its own bearings insures perfection not easily obtained with the roll removed from its bearings. Moreover, the risk of mechanical injury to the roll while taking it out and putting it in is entirely eliminated.

In the accompanying drawings Figure 1 shows an ordinary beating engine. Fig. 2 is a perspective view of my device. Fig. 3 is a transverse section of a portion of the beating engine with my device in position for operation. Fig. 4 is a transverse section through my grinding device.

Similar numerals refer to similar parts in the several views.

Fig. 1 shows an ordinary beating engine, which, being well known in the papermaking art requires but little explanation. It comprises a tub 10 in which the beating roll 11 is mounted to rotate, power being furnished by a belt on a pulley, which are not shown. Each end of the shaft 12 rotates in a bearing carried by a beam 13 having one end pivotally attached to a pedestal 14. The other end of the beam is attached to the lower end of a threaded rod 15 which passes up through a pedestal 16, on top of which a worm gear having an internal thread acts as a nut to support the rod. A worm 17 meshes with the gear and by means of a rod, not shown, connecting the two worms, both gears are simultaneously rotated and the roll raised or lowered. A large number of beat- Specification of Letters Patent.

Patented Dec. '7, 1915. Serial No. 45,921. 7

ing bars 18 radiate from the roll and cooperating with what is known as the bed, shown at 19, subject the pulp in the tub to what is known as the beating process.

The bed is carried by a bed plate 20 which hes in a channel formed in the bottom of the tub. The bed and bed plate may be withdrawn at will and to permit this the tub is provided with an opening 21. When the beating engine is in operation this opening is closed by a suitable cover.

My device consists of a base 25 adapted to fit into the channel prepared for the bed plate 20. A holder 26 is arranged to slide on this base and is moved by a wrench applied to the squared end of a screw 27. Blocks 28 of abrasive material are secured in the holder by a key 29 and screws 30. After the device is in place and the roll in motion the roll may be lowered by the worms until they contact with the abrasive blocks. The holder is then moved to and fro along the base, the roll being lowered from time to time until the grinding is completed.

' I do not wish to be understood to confine myself to the specific embodiment of my invention shown as I am aware that modifications therein may be made without departing from the substance of my claims.

What I claim is as follows:

1. A device adapted to replace the bed plate in a beating engine, said device carrying abrasive material whereby to grind the bars of the beating roll.

2. A base adapted to take the place of the bed plate in a beating engine, a holder mounted to slide on the base, abrasive material carried by the holder, and means for moving the holder to and fro on the base.

3. A base adapted to take the place of the bed plate in a beating engine, a holder mounted to slide thereon, a screw for moving the holder on the base, and abrasive blocks secured in the holder.

4. A device adapted to replace the bed plate in a beating engine, and abrasive material carried by said device and occupying the same position with reference to the rotating beater roll as the bed plate normally for rotating the roll, means for mounting a moved, whereby to grind the beater bars bed plate in operative position With referthereof. 10 ence to the roll, means for moving the roll In testimony whereof I afiiX my signature toward or from the bed plate, a device in the presence of tWo subscribing Witnesses. adapted to replace and be mounted in the HERBERT R. SIMONDS. same position and by the same means as the Witnesses:

bed plate, said device carrying an abrasive EUGENE G. KENNEDY,

against which the rotating r011 may be LOUISE A. BAUER.

Copies of this patent may be obtained for five cents each,by addressing the Commissioner of Patents, Washington, D. G. 

